Indicators of Chemical Change

Indicators of Chemical Change

by Tamara Moody

Multiple Choice

Why doesn't the fourth and fifth balloon get bigger?

• Reached its gas production limit

• Not enough bicarbonate in the last one

• Not enough water

• Need bigger balloons

Fill in the Blank

Is this a physical or chemical change?

Multiple Choice

What is the name of the substance that formed in this reaction?

• Slime

• Yellow stuff

• Reactant

• Precipitate

Multiple Choice

What is the best definition for a precipitate?

• a solid substance that forms in a liquid

• a slimy substance that forms in a liquid

• yellow powder forming in a liquid

• The precipitate is what happens in the water cycle

Multiple Choice

Handwarmers are...

• Endothermic

• Exothermic

Multiple Choice

This type of ice pack is...

• Endothermic

• Exothermic

Multiple Choice

Fire places are

• Endothermic

• Exothermic